SunFire Manuals & User Guides

SunFire is a leading manufacturer of heavy-duty radiant heaters, designed and built in Janesville, Wisconsin. Known for their durability and performance, SunFire heaters—such as the SF80, SF120, and SF150 models—utilize infrared technology to warm objects and people directly, offering a superior alternative to traditional forced-air units.

These heaters are engineered to be quiet, virtually odorless, and smoke-free, making them ideal for automotive garages, construction sites, warehouses, and agricultural buildings. Produced by Rock Energy Systems, LLC, SunFire products feature dual-fuel capabilities (Diesel/Kerosene) and robust construction suited for the toughest weather conditions.

• What types of fuel can I use in my SunFire heater?

  SunFire heaters are designed for use with Diesel, No. 2 Heating Oil, or Kerosene. Do NOT use gasoline, crankcase drainings, naphtha, paint thinners, or alcohol.

• Can SunFire heaters be used indoors?

  Yes, SunFire heaters are safe for indoor use in well-ventilated commercial or industrial spaces (such as shops, garages, and warehouses). They are not intended for residential living areas.

• What is the warranty on SunFire heaters?

  SunFire heaters typically come with a 2-year limited bumper-to-bumper warranty.

• How often is maintenance required?

  Regular maintenance is required for safe operation, including checking fuel filters and ensuring the burner assembly is clean. Refer to your specific model's manual for a detailed schedule.

• Does the heater produce carbon monoxide?

  While SunFire heaters are designed for low emissions, Carbon Monoxide (CO) is a byproduct of combustion. Always ensure a minimum of 2.55 square feet of ventilation to the outdoors when operating the unit.